I filled up yesterday for the first time and got 37. About 70% city, 30% highway. Most of the time really easy driving on Auto mode. Lot's of short hops, 5 to 20 miles and highway driving at 65 mph. Wife drove it a couple of times, I know she drives harder than me when it comes to fuel conservation techniques. She averages 25 with the TSX and I get 28. Also a friend test drove it pretty hard and a neighbor friend drove it too for a half hour stop and go neighborhood traffic.
Considering all that, not bad.